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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Mar. 31, 2019
Level 1 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures
Bifurcated embedded derivative on unsecured convertible note payable  
Level 2 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures
Bifurcated embedded derivative on unsecured convertible note payable  
Level 3 [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures 524 586
Bifurcated embedded derivative on unsecured convertible note payable 141  
Fair Value [Member]    
Liabilities:    
Bifurcated embedded derivative on senior secured convertible debentures 524 $ 586
Bifurcated embedded derivative on unsecured convertible note payable $ 141